ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,076, issued on Jan. 27.
"Automatic vacuum sealer" was invented by Hongyan Wang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An automatic vacuum sealer includes an upper shell, a lower shell, a circuit board, a vacuum pump, and a battery, where the upper shell and the lower shell are snapped to each other and fixed together; the circuit board, the vacuum pump, and the battery are arranged in an arrangement chamber formed between the upper shell and the lower shell; the vacuum pump and the battery both are connected to the circuit board; the circuit board is further provided with keys configured to control a working state of the vac...